Brake



L. E. LA BRIE April 2, 1935.

BRAKE Original Filed Sept. 6, 1928 INVENTOR. LUDGER E. LA BRH:

- ATTORNEY Patented Apr. 2, 1935 v 1,996,248

UNITED STATES PATENT 1mm...

BRAKE Lodger E. La Brie, South Bend, Ind., assignor to Bendix Brake Company, South Bend, 11111., a corporation of Illinois Original application September 6, 1928, Serial No. 304,196. Divided and this application August 30, 1933, Serial No. 687,431

. 9 Claims. (Cl. 188-78) This invention relates to brakes, and is illusiliary return springs 22 and 24) by means such trated as embodied in an internal expanding auas a floating cam lever 26 or the like. tomobile brake of the shiftable anchorage type. b The lower ends of the sh es are adju y n- An object of the invention is to provide simple nected by floating means such as a right-andand inexpensive means for adjustably' positionleft threaded connecting member 28 having its 5 ing the friction means of a brake, whether or not ends adjust y threaded into Pivots ounted the brake is of the illustrative type. n t shoe d s st app a s n F ure 2,

Preferably the adjusting device is mounted on a h shoe p a ly comprises a web 32 welded the backing plate of the brake, for example. by or otherwise secured to a rim 34 faced with brake clamping the plate between anut or other means ing 36. The Sides of the webs 32 next the 10 on one side of the plate and a collar or the like backing plate may engage the rounded ends of 1 on the other side of the plate, and has its end steady rest p 3 a d by t a k n plat formed for. engagement with a wrenchvor other The pre divisional app i n as to do tool for making the adjustments from outside with the shoe-positioni evice shown in detail the brake, I v in Figure 2; In the illustrated embodiment, this The other end of the device is shown formed d vi e incl s a Collar 40 engaging h inner as a steady rest for the shoe, for example passing ce o t bac i p and a aded Stem through an opening in the shoe web and having 42 passing through the booking plate and p a art such as an nd washer engaging th vided with a nut 44 or other means for clampopposite face of the web, ing the backing'plate against the collar 40. 2o

7 According to. an important feature of the in- The end of the stem 42 is formed at 46 for vention, the device is provided between its ends engagement With a Wrench other l for with adjustable shoe-positioning means such as n n h d v to inake the adjustment de-. an eccentrically mounted roller arranged to enscribed below. The nut 44 may, if desired. be

gage the inner face of the rim of the shoe. In provided with a lock washer or the like 48. Q; the illustrated arrangement the side of the roller On an eccentric shoulder 0, just inside the engages the above-described 0 11 collar 40 and shown as coaxial with respect to The above and other objects and features of the collar, there is arranged a oller 5 held bethe invention, including various novel combinatween t e 0011a! 40 d-a h D d P E Washtions of parts and desirable particular construc- 54 S d in a b e oove. The roller 52 o tions, will be apparent from the following del' y engages th inner a of the rim scription of the illustrative embodiment shown being moved in and out radially of the brake in the accompanying drawing, in which: y urning the P Figure 1 is a vertical section through the brake, h d of the adjustin de e pp the just inside the head of the brake drum, and show- P 46 formed as a Steady st for the brake 5 ing the brake shoes in side elevation; and Shoe, and is Shown p o d d w th a shank 58 Figure 2 is a partial radial section on the line Passing through an opening 53 in the Shoe W b. 2-2 of Figure 1, showing the adjusting d v and as having at its end a steady rest part suchwhich forms the subject of the present invention. as a 60 held f u'shaped spring Washer The illustrated brake is fully described and 62 seated in a groove in the endo! the shank 56. 40

is claimed, in my parent application 304,196, filed washer engages the shoe web on the side September 6, 1928, of which the present applicafacing toward the head of the brake drumtion is a division, as to all subject-matter herein shoe. may ,have stefadyfest which claimed. As explained in said parent applicamay 1f deslred be hke the adJustmg device 4 tion, the brake may include a rotatable drum m, scribed above except that roller 52 is omitted.

at the open side of which is a support such as In the illustrated brake, the shoe l6 anchors a backing plate '2' and within which are on post 20 when the drum is turning clockwise,

ranged brake shoes I4 and IE or equivalent fricgshgg zz g z gg g $2 :2:

tion means.

volves substantial lengthwise movement of the 60 In the Partlcular brake Illustrated, the shoes shoes, which is facilitated by the movement of anchor on anchor posts It and 20 extending roller 52 n t shoe rim 34 and during which through openin in the Shoe Webs and which the shoe web 32 slides between the steady rest are mounted on the backing plate, and are apwasher 60 (and the corresponding washer or plied (against the resistance of main and auxdevice 64) and the steady rest pins 38. i I

While one illustrative embodiment has been described in detail, it is not my intention to limit the scope of the invention to that particular embodiment, or otherwise than by the terms of the appended claims.

I claim:

1. A brake comprising a backing plate having movably associated therewith a shoe formed with a web and a rim, and a device mounted on the backing plate and having a steady rest portion engaging said web and having a positioning roller eccentrically adjustably mounted thereon and engaging said rim.

2. A brake comprising a backing plate having 'movably associated therewith a shoe formed with a web and a rim, said web having an opening therethrough, and a device mounted on the backing plate projecting through said opening and having a steady rest part engaging the side of said web and having a positioning roller eccentrically adjustably mounted thereon and engaging said rim.

3. A brake comprising a backing plate having movably associated therewith a shoe formed with a web and a rim, and a device mounted on the backing plate and having a steady rest portion engaging said web and having a positioning part arranged between the web and backing plate and engaging the inner face of said rim.

4. A brake comprising a backing plate having movably associated therewith a shoe formed with a web and a rim, said web having an opening therethrough, and a device mounted on the backing plate projecting through said opening and having a steady rest part engaging the side of said web and having a positioning part arranged between the web and backing plate and engaging the inner face of said rim.

5. A brake comprising a backing plate having movably associated therewith a shoe formed with a web and a rim, and a device mounted on the backing plate and having a steady rest portion engaging said web and having a positioning part arranged between the web and backing plate and engaging the inner face of said rim, said device being adjustably mounted on the backing plate and arranged to permit adjusting said part in or out radially of the brake.

6. A brake comprising a backing plate having movably associated therewith a shoe formed with a web and a rim, said web having an opening therethrough, and a device mounted on the backing plate projecting through said opening and having a steady rest part engaging the side of said web and having a positioning part arranged between the web and backing plate and engaging the inner face of said rim, said device being adjustably mounted on the backing plate and arranged to permit adjusting said part in or out radially of the brake.

7. An adjusting device for a brake or the like comprising a threaded stem adapted to be mounted in a backing plate and having its end outside said plate formed for engagement with a tool to turn said device, a steady rest part at the opposite end of said device, and an eccentrically mounted roller between said ends adapted to engage the inner face of the rim of a brake shoe.

8. An adjusting device for a brake or the like comprising a portion adapted to be adjustably mounted in a backing plate and having its end outside said plate formed for engagement with a tool to adjust said device, a steady rest part at the opposite end of said device, and an eccentrically mounted roller between said ends adapted to engage the inner face of the rim of a brake shoe.

9. An adjusting device for a brake or the like comprising a portion adapted to be adjustably mounted in a backing plate and having its end outside said plate formed for engagement with a tool to adjust said device, a steady rest part at the opposite end of said device, and means between said ends for adjustably engaging and positioning the inner face of the rim of a brake shoe.

LUDGER E. LA BRIE. 

